Gyarados

Mega Gyarados reaches 8.19% usage among high-ladder players (rank 22), making it one of singles' most dominant Mega evolutions. GameWith rates it S tier; Smogon places it at A-. After Mega Evolution its ability becomes Mold Breaker, which bypasses Lightning Rod and Levitate to land Ice Fang on targets like Mega Dragonite. Expert commentary explicitly calls this out as something base Gyarados cannot replicate.

Playstyle：Standard sets run Jolly (17.9%) or Adamant (12.1%) with max Speed investment, Gyaradosite (100%), and Mold Breaker (100%). The core moveset is Dragon Dance (24.1%), Earthquake (20%), Waterfall (18.7%), and Ice Fang (13.7%) with Crunch (8%) as a flex slot. Expert commentary documents a standard core pairing Mega Gyarados with Mega Clefable, consolidated by Glimmora, Aegislash, Rotom-Wash, and Choice Scarf Garchomp. A high-ranked player also recorded a finals run with a single Mega Gyarados plus Florges backbone.

✅ Favorable matchups5

EspathraHippowdonDelphox-MegaGengar-MegaVolcarona

⚠️ Unfavorable matchups3

Meganium-MegaUmbreonVenusaur-Mega

Mega Gyarados sees 0.7% usage among high-ladder doubles players (rank 84), classifying it as a niche pick. Mold Breaker offers unique utility in doubles (bypassing Lightning Rod redirection, for example), but the Mega slot cost and Dragon Dance setup requirement limit it in the fast-paced 4v4 environment. A near-50.1% win rate suggests no structural doubles edge.

Playstyle：Doubles sets are predominantly Jolly (8.6%) with Gyaradosite (100%). Waterfall (24.6%), Protect (23.2%), Crunch (22.5%), and Dragon Dance (21.1%) are the core moves. Partners include Sneasler (9.4%) and Sinistcha (8.2%), operating in team archetypes that need both the Mold Breaker coverage utility and the Intimidate fallback from pre-Mega form.

✅ Favorable matchups3

IncineroarGarchompSneasler

⚠️ Unfavorable matchups2

WhimsicottFarigiraf

Gyarados sits at 2.18% usage among high-ladder players (rank 52), with 35 top-300 ladder appearances and 33 tournament appearances confirming its competitive legitimacy. Intimidate on switch-in combined with Dragon Dance setup is its defining archetype, rated S tier on GameWith. Expert commentary frames it as a dual-function pivot that uses Intimidate plus type changes to carve out Dragon Dance opportunities.

Playstyle：Item spread favors Leftovers (29.2%), Sitrus Berry (20.7%), and Chesto Berry (17.8%), reflecting a bulky setup style that uses recovery items to sustain Dragon Dance setup turns. Intimidate is near-universal (91.5%). The core moveset is Waterfall (21.3%) plus Dragon Dance (11.2%), with Power Whip (13.8%), Earthquake (12.5%), and Taunt (6.5%) rounding out coverage and disruption. Expert notes highlight that Mold Breaker Ice Fang (available after Mega Evolution) can directly OHKO Mega Dragonite without prior chip, and the Hippowdon-Gyarados pivot core is a documented standard axis.

✅ Favorable matchups5

HippowdonPrimarinaLopunny-MegaCorviknightGarchomp

⚠️ Unfavorable matchups2

ArchaludonMeowscarada

Gyarados reaches only 0.3% usage among high-ladder doubles players (rank 119), placing it on the fringe. Intimidate still offers switch-in value in doubles, but setting up Dragon Dance solo in the 4v4 doubles tempo is challenging; Protect at 18.6% highlights the defensive survivability demands. With a doubles win rate of roughly 50.4%, it holds no meaningful structural edge.

Playstyle：Doubles Gyarados runs Sitrus Berry (38.2%) and Leftovers (24.6%) to extend longevity, with Intimidate at 97.2%. Waterfall (24%), Protect (18.6%), Thunder Wave (14.7%), and Dragon Dance (8.8%) form the core, functioning as an Intimidate pivot that disrupts opponents while creating setup windows for teammates. Partners include Sinistcha (6.3%) and Excadrill (5.8%), fitting sand or field-control archetypes.